Обсуждение: 8k limit

Hello,Im trying to store a string of ascii characters greater than 8k. Is there a
tunable which will allow me to alter the 8k max limit? Im pretty sure this has
been discussed here before =). Next question is whats the max number of large
objects you can store? I think its about 4 billion , am i wrong?



+-=-=-=-=-=-=-=StOo=-=-=-=-=-=-=-+

Stuart Hodgkinson Software Engineer
stuart@comodo.net 

> Next question is whats the max number of large
> objects you can store? I think its about 4 billion , am i wrong?

Don't know the exact theortical limit, but I believe it depends on the
capability of your file system, rather than pointer size and such,
because each lo is a file.

For example, my file system can have 1064960 files in it (one can find
that out with fsck), but the practical constraint will be much
lower. I find it difficult to deal with 30000 files in one directory,
for example. The time it takes to open a file in such directory is
usually on the order of seconds.

--Gene

>
> For example, my file system can have 1064960 files in it (one can find
> that out with fsck), but the practical constraint will be much
> lower. I find it difficult to deal with 30000 files in one directory,
> for example. The time it takes to open a file in such directory is
> usually on the order of seconds.

I don't know if this info is useful, but;

I have a directory with 150K files in it, and can open files in it without
noticable delay (this is not through postgres).  Before setting up this dir,
i tried to find out the limit of how many files is sensible.  I couldn't
find any info so just thought i'd try it, and it appears to work fine.  If
you think I am going to hit problems (I am serving jpgs from this directory
for a web site), please let me know.

running on
Red Hat Linux release 5.2 (Apollo)
Kernel 2.0.36 on an i686

cheers

timj